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Does anyone really believe that China can go to the moon, mine iron, bring it back to Earth and sell it? There is more iron on Earth than we can use, and it therefore sells for a few cents a pound. Space transport costs tens of thousands of dollars per pound, and is not reliable, it's just not worth it. Even He3 isn't valuable enough to pay for space transport.
So, it's more likely not meant to come back to Earth. Perhaps the Chinese are preparing to visit the cosmos?